Acetylene-gas generator.



No. 643,907. Patented Feb. 20, I900.

' F. C. MAURIN.

ACETYLENE GAS GENERATOR.

(Application filed Dev. 2, 1887 Renewed July 27, 1899.)

(No Model.)

W/YYVL'SSES INVENTOR Attorney UNITED STATES PATENT OFFICE.

FRANCOIS OELESTIN MAURIN, OF PARIS, FRANCE, ASSIGNOR TO CHARLES L. OABANIS, OF SAME PLACE.

ACETYLENE-GAS GENERATOR.

SPECIFICATION forming part of Letters Patent No. 643,907, dated February 20, 1900.

Application filed December 2, 1897. Renewed July 2'7, 1899- Serial No. 725,320. (No model.) v

To aZZ whom, it may concern:

Be it known that I, FRANCOIS CELESTIN MAURIN, a citizen of the French Republic, residing at Paris, France, have invented certain new and useful Improvements in Acetylene- Gas Apparatus; and I do hereby declare the following to be a full, clear, and exactdescription of the inven tion,such as will enable others skilled in theart to whichit appertains to make and use the same.

My invention relates to apparatus for generating acetylene gas; and the primary object of the invention is to construct such an apparatus that will produce a certain limited volume of acetylene gas, obtained at a pressure that is always even and constant and that may be readily controlled;

It consists in the novel arrangement and combination of parts, as hereinafter more fully described, and afterward particularly pointed out in the claim.

The new apparatus produces in the same manner as the one described in my Patent No. 613,361, of October 11, 1898, a certain volume of acetylene gas, obtained at a pressure which is always constant, by means of the development of gas from a predetermined quantity of calcium carbid, said volume of gas being always counterbalanced by the inner pressure of the water and the gas developed or consumed.

The accompanying drawings illustrate, as an example, a preferred form of generator embodying my improvements, in which Figure 1 is a vertical section showing the general arrangement, and Fig. 2 a vertical section through the basket.

The principal parts of this apparatus are the outer or water-containing vessel A and the generator B, with the basket 0. The outer vessel A has the general form of a cylinder and is closed at the bottom to contain water. In its upper part a socket or sleeve (1 is provided on one side,which is adapted to receive a telescoping pipe T, having a gas-burner G associated therewith.

The generator comprises a bottomless cylinder or bell and a basket. The diameter of the bell is obviously less than that of the outer vessel, so that it'may be received into the latter with facility, as shown in Fig. 1.

It is closed at the top by a bulged part or dome D. This dome is provided with a handle P to facilitate its removal and with projections or lugs p 19, adapted to be engaged under corresponding strips 19 secured to the inner surface of the water-receptacle. It carries also a pipe 25, provided with a cock R, which permits of putting the inner space of the generator in communication with the outside or of closing it off. Near the lower edge of the bell two pins 0 0 project inwardly, adapted to enter into slots e, provided in the lower edge of the basket, as shown in Fig. 2, so that said basket may be secured in the hell by means of the well-known bayonet connection. The basket is provided with openingsas, for instance, 0, Fig. 2, or as shown in my prior patentto admit water to the cartridges of calcium carbid, provided in any suitable number of casings b b to 12 located within the interior of the basket one above the other.

The charging of the apparatus is effected in the same manner as described in my aforesaid patentby making use of the carbid in the form of cartridges; but this is not absolutely essential, as calcium carbid in its ordinary commercial form may be employed just as well, if desired.

The operation of the apparatus is as follows: The outer vessel A is filled with water to about two-thirds of its depth. The basket 0 is then charged with the carbid in form of cartridges or otherwise and placed in the generator and secured therein by the pins 0 c, as above described. The cock R is closed and the generator is plunged into the vessel by means of its handle P until the projections 19 19 rest upon the upper inclined portion of the Water-receptacle. A slight turning of the generator will cause its projections to lock with the strips p whereby it is secured in its proper position in the outer vessel. Thereupon the pipe T, which may have a telescopic connection,as shown in the drawing, is secured in the socket (1, said pipe carrying at its upper end any suitable burner, which may be adjusted at will higher or lower by means of the telescopic arrangement. The pipe T is provided with a downwardly-eXt-ended nipple s, which is connected with the pipe i by a rubber tubing r. The apparatus is now ready to operate; but in assembling the parts as described a certain quantity of air is inclosed in the generator. This air presses back the water from the interior of the generator, which rises consequently on the outside, and the calcium carbid will therefore remain intact, so that the apparatus may remain so an indefinite period without producing gas.

Vhen it is desired to produce gas,the cock R is opened. The air compressed in the generator will escape first,and as it is desirable to remove all the air the cock R is therefore left open until the water almost fills the generator. The cock R is thereupon closed,and the gas developed will drive the water back again. The cock R may now be opened to allow the gas to escape through the pipe 2, tube r, and pipe T to the burner, or burners G in the event the pipe T instead of being provided with a single burner, as shown, is connected with a conduit feeding a number of burners. According to the consumption of gas by the burners the pressure inside diminishes and the water rising in the apparatus reaches again the first casing to reestablish the inner pressure by the development of fresh gas. Then, as described in my former patent, the water reaches a second casing after the carbid in the first has been exhausted, then the third, &c. The gas being always produced in excess, forces back the water, and new cartridges are moistened only when the inner pressure is reduced by the consumption of gas. At any stage of this operation to put the apparatus in equilibrium the cock B may be closed and the apparatus will remain dormant for any length of time, retaining the quantity of gas developed therein.

As soon as the cock R is opened again the consumption and the reproduction of gas continuein proportion to each other.

It is evident that various changes and modifications in the form, construction, and arrangement of parts of myinvention may be made Without departing from the spirit and scope of the same. Hence I do not limit myself to the precise details described and illustrated,but consider myself entitled to all such changes and modifications as fall within the limit and scope of my invention.

I claim- A portable acetylene-gas apparatus such as described, embodying essentially in its organization a water-containing receptacle A having a socket to receive a telescoping burner-pipe T, a combined generator and gas-holder B,adapted to be plunged into said receptacle, said generator being open at the bottom and having its top formed as a dome provided with upwardly-inclined projections adapted to engage corresponding strips secured to the inner surface of the water-receptacle, a pipe textending vertically upward from the dome, provided with a cock R, a flexible means connecting said pipe with the burner-pipe T, and a basket 0 adapted to be secured in the generator by a bayonet connection and adapted to receive a plurality of casings arranged one above the other and provided with cartridges of calcium carbid, with means for feeding water to said casings successively, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

FRANCOIS CELESTIN MAURIN.

Vitnesses:

CHARLES CABANIS, CHARLES FLEURY. 

